Peters



UNITED STATES To all whom it may concern Be it known that we, CHARLES J. SHUTTLE- WORTH, of Springville, in the county of Erie and State of New York, and ORVILLE M. MORSE, of Silver Creek, in the county of Chautauqua and State of New York, have invented new and useful Improvements in Apparatus for Bolting Flour and other Material,

Aof which the following is a specification, reference being had to the accompanying drawings.

This invention relates to a bolting apparatus in which an inclined screen or sieve is employed instead of the rotating reels which are now generally used. These reels are ordinarily composed of a six-sided frame covered with bolting-cloth, and the meal bolted therein rests upon the lower sect-ion of boltingcloth, and is gradually lifted up as the reel rotates, and held by the rib of the reel-frame until the anglekof the section supporting the meal becomes so steep that the rib is unable to retain the meal any longer, when the whole mass of meal slides off and drops down upon the lowest section of the reel. This operation is repeated six times during each revolution of a six-sided reel, and thebolting is effected by only one section of the reel at a time, and only during the short time in which the meal is in motion, as very little iiour passes through:

- the meshes when the meal is at rest.

The object of our invention is A to construct a bolting apparatus in which the process of bolting can be carried on more expeditiously, more conveniently, and at less expense than in ordinary bolting-reels, and our invention consists, principally, of a bolting apparatus containing an inclined boltingsurface and an elevating mechanism so arranged that the meal is delivered by the elevating mechanism directly at or above the upper end of the inclined bolting-surface, and caused to pass repeatedly over the bolting-surface, whereby the meal is rapidly bolted; also, of various details of construction, as will be hereinafter fully set forth.

i GllAlLES J. SHUTTLEVORTH, OF SPRINGVILLE, AND ORVILLE M. MORSE OF SILVER CREEK, NE/V YORK.

PATENT Price.

APPARATUS FOR BOLTING FLOUR, 86C.

i SPECIFICATION forming part` of Letters Patent No. 225,536, dated March 16, 1.880.

` Application filed May 13, 1879.

In the accompanying drawings, Figure 1 is an elevation of our improved apparatus with a portion of the outer case removed. is a cross-section thereof. Fig. 3 is a top-plan view with the top of the case removed. Fig. 4 is an end view of the machine.

Like letters of reference designate like parts in the several figures.

A represents the case of the machine, supported on legs or posts B. C is the inclined bolt or screen, and D the elevatingwheel.

The inclined bolt or screen C consists of one or more frames covered with bolting -cloth, and is arranged in inclined guides or ways e e in one side of the case A, so that the screen C can be readily removed from the machine when required.

As shown in the drawings, the elevating- `wheel is composed of a suitable number of Fig. 2V

long buckets or wings, j', connected with the shaft g of the wheel by spiders h. g

1l represents the concave bottom of the case A, which is so formed that thewings or buckets fof the elevating-wheel run in close `contact with the concave bottom'aud pick up the meal as it falls on the same.

The inclined screen C is arranged to face the lower portion of the elevating-wheel, so that the meal, as it escapes from the buckets f, is delivered against the side portion of the case A at or above the upper edge of the Yinis driven by a crossed belt, u, from a pulley,

' examine the under side of the screen and apply a brush to remove any material that may adhere thereto.

The elevating-wheel D and screen C are arranged in a slightly-inclined position, in the manner of an ordinary Hour-bolt, to impart to the material a motion toward the tail end of the machine.

q is the feed-spout, entering' the top of the case A at the head of the machine, and r is the bran-discharge spout, arranged at the tail end of the concave bottom t' of the case.

lThe ground meal or other material to be separated is fed into the machinethrough the spout q, and falls either upon the buckets f of the elevating-wheel or upon the bottom rof the case, where it is scooped up by the buckets and elevated. As the wheel D revolves, the material elevated by the buckets f is discharged against the upper end of the screen C at the head of the machine, and is caused to roll over the inclined surface of the screen back to the concave bottom of the case. Owing to the inclined position of the wheel D and screen C, the material travels at the same time toward the tail end of the machine.

The screen C is provided with bolting-cloth 'of different degrees ofiineness in any approved and well-known order.

Assuming that the iinest' cloth is placed at the head of the screen, the superline iiour will pass through the cloth at the head of the screen and the inferior grades of Hour will pass through the cloth nearer the tail end of the screen. The last portion, s, of the screen will be sufficiently coarse to permit the passage of the middlin gs, and the bran will be discharged through the opening r.

The conveyer-trough t will be provided with a suitable number of cut-offs, so that any desired portion of the flour bolted through may be returned to the case for rebolting.

If desired, the different grades of boltingcloth may each be mounted on a separate frame, so that each may be removed independent of the others and be replaced by any other desired grade, thereby enabling the miller to adapt the bolting-surface to the particular work required to be performed.

Upon removing the screen C from the case A both sides of the screen can be thoroughly cleaned, while in a reel only the outside of the cloth can be reached. The space underneath the screen' G into which the our is bolted is entirely separated by the bolting-surface from the space containing the meal, thereby preventing the floating specks which occur in every bolting operation from coming in contact with lthe flour, as they do when ordinary reels are used, and doing away with the speckboxes used in ordinary reels for collecting these iioating specks.

The bolting-screen C is preferably made of the same size as oneI of the sections of an ordinary boltingreel, and the elevating-wheel somewhat larger, so as to deliver the meal at the top of the screen.

In our improved bolting apparatus the meal to be bolted is divided into a large number of small parts, according to the number of wings or buckets employed, and the meal is in consequence brought in contact with the boltingsurface in an almost continuous thin stream, whereby the bolting-surface is kept almost continually in operation, and the operation of bolting performed very rapidly.

rIhe granules of flour strike the meshes of the stationary bolting-surface always in the same direction, so that granules of the same size only will pass through any given portion of the bolting-surface, while in rotating reels the granules of ilour strike the bolting-surface at various angles, according to the position which the section of the reel may occupy at the moment that the granule of iiour strikes the same; hence the flour bolted by our improved machine is more uniform than that bolted through rotating reels, and consequently Works better in baking.

In our improved machine the same amount of work performed by a rotating reel is accomplished with a small portion of the boltingcloth required in a reel, and our improved machine is consequently produced at considerably less expense.

The elevating mechanism operates at the same time to cool the meal and prevent the bolting-surface from becoming clogged. The buckets or wings f of the elevating mechanism may be secured to the periphery of a tight drum or cylinder which is closed at its head, or they may be attached to endless belts or chains running over suitable pulleys, as may be preferred.

We claim as our invention- 1. In a bolting apparatus, the combination, with an elevating mechanism constructed substantially as described, of an inclined screen facing the elevating'mechanism and composed of sections having different degrees of neness arranged side by side, whereby the material fed into the machine is separated into ne and coarse portions from the head toward the tail of the machine, substantially as set forth.

2. In a bolting apparatus, the combination,

with an elevating mechanism provided with Ioo IIO

rzo 

